Dwell Angle" Measurement - Lutron Electronics DM-9030 User Manual

5-7 "DWELL ANGLE" Measurement

1) Select the "Function Switch" to the % (duty cycle), 3 cyl, 4
cyl, 5 cyl, 6 cyl on the DWELL range.
2) Connect black test lead into " COM" terminal and red test
lead into "DWELL" terminal.
3) Connect red test probe into " BREAKER POINTS" or
"-" terminal of IGNITION COIL.
Connect black test probe into " GROUND" or "-"
terminal of battery.
* The wire connection diagram please ref. fig. 3.
4) Crank engine, the display will show the DWELL ANGLE
of points.
NOTE:
Only traditional ignition system car that built in
BREAKER POINTS needs to test DWELL ANGLE.
If the car in ELECTRONIC IGNITION SYSTEM need not.